Alert archive / New Jersey / Severe Thunderstorm Warnings in 2014

Severe Thunderstorm Warning 55, NWS Philadelphia/Mount Holly

June 19, 2014Atlantic County, New Jersey

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jun 19, 2014, 3:00 AM EDT for Atlantic County, New Jersey. It was in force for 60 min. 1 report came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued
Jun 19, 2014, 3:00 AM EDT (07:00 UTC)
Expired
Jun 19, 2014, 4:00 AM EDT
In force
60 min
Issued by
NWS Philadelphia/Mount Holly
Area
Storm-based polygon

County Atlantic County, NJ

The radar

The Philadelphia radar (KDIX), 65 km from the middle of the area, began a volume at 07:00 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

What was reported inside it

TimeReportWhereRemark
Jun 19, 3:01 AM EDTTSTM WND GST 49West Atlantic City, NJ

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Wallops Is Stn, VA (KWAL), launched 00:00Z, 7.0 hours before the alert went out and 177 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Wallops Is Stn, VA at 00:00Z on 2014-06-19Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1763 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Wallops Is Stn, VA at 00:00Z on 2014-06-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 7 square meters per square second.1939Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
1763 J/kg
Mixed-layer CIN
-48 J/kg
Mixed-layer LCL
1721 m above ground
0-6 km bulk shear
11 kt
0-1 km storm-relative helicity
7 m²/s²
0-3 km storm-relative helicity
32 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

228 
WUUS51 KPHI 190700
SVRPHI
NJC001-190800-
/O.NEW.KPHI.SV.W.0055.140619T0700Z-140619T0800Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
300 AM EDT THU JUN 19 2014

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHEASTERN ATLANTIC COUNTY IN SOUTHERN NEW JERSEY...

* UNTIL 400 AM EDT

* AT 259 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM. THE STORM WAS NEAR ENGLISH CREEK...MOVING EAST
  AT 50 MPH. THIS STORM IS CAPABLE OF PRODUCING DAMAGING WINDS IN
  EXCESS OF 60 MPH. 

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  NORTHFIELD AND SOMERS POINT AROUND 305 AM EDT...
  PLEASANTVILLE AND VENTNOR CITY AROUND 310 AM EDT...
  ATLANTIC CITY AROUND 315 AM EDT...
  BRIGANTINE AROUND 320 AM EDT...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH...MOVE INDOORS TO A
STURDY BUILDING AND STAY AWAY FROM WINDOWS. WHEN IT IS SAFE TO DO
SO...REPORT SEVERE WEATHER TO LOCAL LAW ENFORCEMENT OR TO THE
NATIONAL WEATHER SERVICE.

VERY HEAVY RAIN WILL ALSO OCCUR WITH THIS SEVERE THUNDERSTORM...WHICH
COULD FLOOD LOW LYING AREAS QUICKLY AND COVER ROADS WITH WATER. DO
NOT DRIVE INTO AREAS WHERE WATER COVERS THE ROAD.

FREQUENT CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THIS SEVERE
THUNDERSTORM. WHEN THUNDER ROARS...MOVE INDOORS! REMEMBER...IF YOU
CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE STRUCK BY LIGHTNING.

&&

LAT...LON 3940 7435 3938 7440 3936 7440 3930 7453
      3929 7457 3931 7459 3929 7461 3930 7463
      3929 7465 3930 7476 3943 7477 3947 7449
      3949 7430 3948 7429
TIME...MOT...LOC 0700Z 265DEG 45KT 3936 7466

$$

NIERENBERG
1 follow-up statement
717 
WWUS51 KPHI 190756
SVSPHI

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
356 AM EDT THU JUN 19 2014

NJC001-190806-
/O.EXP.KPHI.SV.W.0055.000000T0000Z-140619T0800Z/
ATLANTIC NJ-
356 AM EDT THU JUN 19 2014

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN ATLANTIC COUNTY
WILL EXPIRE AT 400 AM EDT...

THE STORM THAT PROMPTED THE WARNING HAS MOVED OFFSHORE.

LAT...LON 3940 7435 3938 7440 3936 7440 3930 7453
      3929 7457 3931 7459 3929 7461 3930 7463
      3929 7465 3930 7476 3943 7477 3947 7449
      3949 7430 3948 7429
TIME...MOT...LOC 0756Z 265DEG 45KT 3942 7376

$$

The office that day

Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 19, 12:43 AM EDTSpecial Weather StatementPHISalem2 hr
Jun 19, 1:41 AM EDTSevere Thunderstorm WarningPHIBurlington, Camden, Gloucester64 min
Jun 19, 2:23 AM EDTSpecial Weather StatementPHIAtlantic, Cumberland82 min
Jun 19, 2:48 AM EDTSpecial Weather StatementPHIBurlington, Ocean72 min
Jun 19, 3:07 AM EDTSpecial Weather StatementPHIOcean68 min
Jun 19, 3:33 AM EDTSpecial Marine WarningPHI57 min

Nearby

Severe Thunderstorm Warnings in New Jersey, 2014Every severe thunderstorm warning in 2014

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.